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r r r<< rAlso known as palygorskitePalygorskite)或紫矿,是一种链状结构Layered structureA hydrous magnesium-rich silicate clay mineral. Its structure belongs to21类型粘土矿物。在每一个21In the unit structure layer, the vertices of the tetrahedral wafer are reversed at a certain distance, forming a layer-like structure. Channels parallel to the chain are formed between the tetrahedral strips. The cross-section of the channels is approximately3.7 * 6.3A. The channel is filled with zeolite water and crystalline water, as seen in the crystal structure diagram of attapulgite clay.<< r
r<< rProduct Features<< r
r<< r1has good thickening properties. The paint film is full, and the opening effect is good;<< r
r<< r2Good suspension properties. Effectively prevents the precipitation and stratification of paint and coatings;<< r
r<< r3It has good blending properties. It is easy to apply, becomes thinner under the action of shear force, and thickens again when at rest;<< r
r<< r4It has good thixotropy. It can be added directly, with good compatibility, without the need to change the process or formula;<< r
r<< r5, good flow leveling. Protects against shrinkage holes and fish eyes, does not easily cause flow marks;<< r
r<< r6It has good weather resistance. It possesses strong acid and alkali resistance, corrosion resistance, and mildew resistance;<< r
r<< r7Good heat insulation. Resistant to high temperatures, heat-insulated, and insulating;<< r
r<< r8It has good environmental protection properties. It is chemically inert, non-polluting, inhibits the growth of microorganisms, absorbs toxic volatile components, and is environmentally friendly.[1]<< r
r<< rApplication of Attapulgite<< r
r<< rProcess Characteristics<< r
r<< rThe attapulgite clay has cation exchangeability.JiangsuXuyiThe amount of exchangeable calcium ions in various types of attapulgite clays can be found at <7.5~12.5 mmol/100 gExchangeable magnesium ion quantity2.5~7.5 mmol/100 gAfter activation treatment, the amount of exchangeable cations is significantly increased.<< r
r<< rThe adsorption and decolorization performance is related to the content of attapulgite. The higher the content, the stronger the decolorization ability.<< r
r<< rStrong water absorptionSlurry Formation PerformanceAnd so on.<< r
r<< rMain Purposes<< r
r<< rDue to the special physical and chemical properties and processing capabilities of attapulgite clay, it is widely used in various fields such as petroleum, chemical industry, building materials, papermaking, medicine, and agriculture. Currently, the largest consumption in China is in coatings, drilling mud, and oil refining.<< r
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